The Pritzker Group, a middle-market investment firm, has hired David J. Hirsch as vice president of operations support. He will provide financial and accounting services across the investment firm’s family of companies. Prior to Pritzker, Mr. Hirsch was a manager in Crowe Horwath's transaction services practice, providing buy-side and sell-side advisory services to private equity and corporate clients. He also spent five years in Deloitte & Touche’s audit and enterprise risk services group. Based in Chicago and Los Angeles, The Pritzker Group acquires North America-based companies with enterprise values between $75 million and $400 million.